Nematode Infection (NI)
There are many different types of parasitic worms that can infect humans. Roundworms are one such type. There are some 500,000 species of roundworms and about 60 are known to infect humans. It can infect a number of different organs in the human body, not only the digestive tract as is often though. Most infections are not serious and a person may not even be aware of the worms. But some roundworm infections can be serious or even complicate into life-threatening conditions. Roundworms are parasitic worms (helminths) that belong to the phylum Nematoda. In other words, roundworms is the common name for one type of parasitic worm known as nematodes.